Input using getline(cin,n); is not printing first input and i am not using cin>> to take input anywhere

I am trying to print inputs until user gives a blank input.So,I used getline(cin,input).But,When i use getline(cin,input).It is skipping first input while giving output.

#include <iostream>
using namespace std;
int main() {
    while(1)
    {
        string n;
        getline(cin, n);
        while(getline(cin,n) && !n.empty())
        {
            cout<<n<<endl;;
        }
        if(n.empty())
            break;
    }
    return 0;
}

sample input:

12 2

output obtained:

2

output needed:

12 2